<p><strong>Multiparameter sweep</strong></p>
<p>Launches several simulations covering all combinations of parameters values as indicated by the user. If, for example, our model has 2 parameters with the following
default values, p1=10 and p2=100; and we want to perturb them as:</p>
<ul>
   <li>p1: 2 iterations of &plusmn;5% perturbation
      <ul>
         <li>10*(1-5/100) = 9.5</li>
         <li>10*(1+5/100) = 10.5</li>
      </ul>
   </li>
   <li>p2: 3 iterations of &plusmn;10% perturbation
      <ul>
      <li>100*(1-10/100) = 95</li>
      <li>100</li>
      <li>100 *(1+10/100) = 110</li>
      </ul>
   </li>
</ul>
<p>This will result in 6 iterations (2 values for p1 and 3 for p2). The corresponding simulations will be:</p>
<ul>
   <li>Simulation 1: p1 = 9.5, p2 = 90</li>
   <li>Simulation 2: p1 = 9.5, p2 = 100</li>
   <li>Simulation 3: p1 = 9.5, p2 = 110</li>
   <li>Simulation 4: p1 = 10.5, p2 = 90</li>
   <li>Simulation 5: p1 = 10.5, p2 = 100</li>
   <li>Simulation 6: p1 = 10.5, p2 = 110</li>
   <li>Simulation 7: p1 = 10, p2 = 100 (a standard unperturbed run is always included)</li>
</ul>
<p><strong>Known limitations</strong></p>
<p>Only parameters and variables of type Real are recognized. Renamings like 'type MyType = Real' are not supported either.</p>
<p>Arrays of any type are also not yet supported.</p>
